R. Ribeiro

most citedBulk viscosity driving the acceleration of the Universe

172 citations · 202 across the 2 of their papers we have counts for

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astro-ph2005★ 172 cited

Bulk viscosity driving the acceleration of the Universe

J. C. Fabris, S. V. B. Goncalves, R. de Sa Ribeiro

The possibility that the present acceleration of the universe is driven by a kind of viscous fluid is exploited. At background level this model is similar to the generalized Chaply…

astro-ph2003★ 30 cited

Generalized Chaplygin gas with $α = 0$ and the $Λ C D M$ cosmological model

J. C. Fabris, S. V. B. Gonçalves, R. de Sá Ribeiro

The generalized Chaplygin gas model is characterized by the equation of state $p = - \frac{A}{ρ ^{α}}$ . It is generally stated that the case $α = 0$ is equivalent to a model with cosmo…

Bulk viscosity driving the acceleration of the Universe

Generalized Chaplygin gas with α=0 and the ΛCDM cosmological model

Generalized Chaplygin gas with $α = 0$ and the $Λ C D M$ cosmological model